MESON Chess Problem Database
Problem Display
PID: 91214 (2Q5/3n1B2/3p2pK/B1N4p/n1Nk2p1/4RP2/b3RPr1/2b4q w - - 0 1)
Schneider, Michael
Die Schwalbe, 1968
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb2
- 2.Rd2#
- 2.Rd3#
- 2.Re4#
- 1...Bd2
- 2.Rxd2#
- 1...Ba3
- 2.Rd2#
- 2.Rd3#
- 2.Re4#
- 1...Bxe3+
- 2.fxe3#
- 1...Bb1
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Sb2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Saxc5
- 2.Bc3#
- 1...Sab6
- 2.Bc3#
- 1...Sdxc5
- 2.Qh8#
- 1...dxc5
- 2.Qxd7#
- 1...d5
- 2.Se6#
- 1...g5
- 2.Rd3#
- 2.Re4#
- 1...Bb2
- Tries
- 1.Kg7?
- threat
- 2.Rd3#
- 2.Re4#
- 1...Bxe3
- 2.fxe3#
- 1...Bxc4
- 2.Re4#
- 1...Saxc5
- 2.Bc3#
- 1...dxc5
- 2.Qxd7#
- 1...d5
- 2.Se6#
- 1...Qd1
- 2.Re4#
- 1...Bb1
- 2.Sb3#
- 1...Sb2
- 2.Bc3#
- 2.Re4#
- 1...Sc3
- 2.Bxc3#
- 2.Rd3#
- 1...Se5
- 2.Re4#
- 1...Sf6
- 2.Rd3#
- 1...Sdxc5!
- threat
- 1.Sd2?
- threat
- 2.Rd3#
- 2.Re4#
- 1...Bxd2
- 2.Rxd2#
- 1...Bxf7
- 2.Rd3#
- 1...Saxc5
- 2.Bc3#
- 1...Sdxc5
- 2.Qh8#
- 1...Be6
- 2.Rd3#
- 1...Bb1
- 2.Sdb3#
- 2.Scb3#
- 1...Bc4
- 2.Re4#
- 1...Bd5
- 2.Rd3#
- 1...Sb2
- 2.Bc3#
- 2.Re4#
- 1...Sc3
- 2.Bxc3#
- 2.Rd3#
- 1...Se5
- 2.Re4#
- 1...Sf6
- 2.Rd3#
- 1...d5
- 2.Se6#
- 2.Rd3#
- 1...dxc5!
- threat
- 1.Rxa2?
- threat
- 2.Sb3#
- 1...Bxe3+
- 2.fxe3#
- 1...Saxc5
- 2.Bc3#
- 1...Sdxc5
- 2.Qh8#
- 1...dxc5
- 2.Qxd7#
- 1...Qd1!
- threat
- 1.Qc6?
- threat
- 2.Se6#
- 2.Qd5#
- 2.Qxd6#
- 1...Bxe3+
- 2.fxe3#
- 1...Saxc5
- 2.Bc3#
- 2.Qd5#
- 2.Qxd6#
- 1...Sdxc5
- 2.Qd5#
- 2.Qxd6#
- 1...dxc5
- 2.Qe4#
- 2.Qd5#
- 2.Qxd7#
- 2.Qd6#
- 1...d5
- 2.Se6#
- 2.Qxd5#
- 1...Qh2
- 2.Se6#
- 2.Qd5#
- 1...Sc3
- 2.Se6#
- 2.Bxc3#
- 1...Sab6
- 2.Se6#
- 2.Bc3#
- 1...Sdb6
- 2.Se6#
- 1...Sf6
- 2.Se6#
- 1...Sf8
- 2.Qd5#
- 2.Qxd6#
- 1...Bxc4!
- threat
- 1.f4?
- threat
- 2.Rd3#
- 2.Re4#
- 1...Rxf2
- 2.Rd3#
- 1...Bxe3
- 2.fxe3#
- 1...Bxc4
- 2.Re4#
- 1...Saxc5
- 2.Bc3#
- 1...Sdxc5
- 2.Qh8#
- 1...dxc5
- 2.Qxd7#
- 1...d5
- 2.Se6#
- 1...Qd1
- 2.Re4#
- 1...Qh3
- 2.Re4#
- 1...Rg1
- 2.Rd3#
- 1...Rh2
- 2.Rd3#
- 1...Bb1
- 2.Sb3#
- 1...Sb2
- 2.Bc3#
- 2.Re4#
- 1...Sc3
- 2.Bxc3#
- 2.Rd3#
- 1...Se5
- 2.Re4#
- 1...Sf6
- 2.Rd3#
- 1...Rg3!
- threat
- 1.Kg7?
- Keys
- 1.Bd2!
- threat
- 2.Rd3#
- 2.Re4#
- 1...Bxd2
- 2.Rxd2#
- 1...Bxc4
- 2.Re4#
- 1...Saxc5
- 2.Bc3#
- 1...Sdxc5
- 2.Qh8#
- 1...dxc5
- 2.Qxd7#
- 1...d5
- 2.Se6#
- 1...Bb1
- 2.Sb3#
- 1...Sb2
- 2.Bc3#
- 2.Re4#
- 1...Sc3
- 2.Bxc3#
- 2.Rd3#
- 1...Se5
- 2.Re4#
- 1...Sf6
- 2.Rd3#
- threat
- 1.Bd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- B(a);N_GUARD::R(A),XB(a)
- B(a);CHECK,OGATE,XR(C)::P(B),XB(a)
- B(c);N_GUARD::S(G)
- B(c);N_GUARD::S(G),XB(c)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- S(e);N_GUARD,XS(G)::B(F)
- S(k);N_GUARD,SBLOCK,XS(G)::QAB(J)
- P(i);OGATEB,SBLOCK,XS(G)::QAR(J),XS(k)
- P(i);SBLOCK::S(G)
- Tries
- Try
- K(H);N_SPINR(C),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,XR(C)::P(B),XB(a)
- B(c);XS(E)::R1(C)
- S(e);N_GUARD,XS(G)::B(F)
- P(i);OGATEB,SBLOCK,XS(G)::QAR(J),XS(k)
- P(i);SBLOCK::S(G)
- Q(b);::R1(C)
- B(c);N_GUARD::S(G)
- S(k);::R1(C)
- Refutation
- S(k);XS(G)
- Try
- S(E);N_SPINR(C)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,P_PINR(C),XS(E)::R(A),XB(a)
- B(c);XB(I)::R1(C)
- S(e);N_GUARD,XS(G)::B(F)
- S(k);N_GUARD,SBLOCK,XS(G)::QAB(J)
- B(c);::R1(C)
- S(k);::R1(C)
- Refutation
- P(i);XS(G)
- Try
- R(A);XB(c)
- Threat
- S(G)
- Vars
- B(a);CHECK,OGATE,XR(C)::P(B),XB(a)
- S(e);N_GUARD,XS(G)::B(F)
- S(k);N_GUARD,SBLOCK,XS(G)::QAB(J)
- P(i);OGATEB,SBLOCK,XS(G)::QAR(J),XS(k)
- Refutation
- Q(b);
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- B(a);CHECK,OGATE,XR(C)::P(B),XB(a)
- S(k);::S(G)
- Refutation
- B(c);XS(E)
- Try
- P(D);N_SPINR(C)
- Threat
- DUALS(2)
- Vars
- R(d);XP(B)::R1(C)
- B(a);OGATE,P_PINP(D),XR(C)::P(B),XB(a)
- B(c);XS(E)::R1(C)
- S(e);N_GUARD,XS(G)::B(F)
- S(k);N_GUARD,SBLOCK,XS(G)::QAB(J)
- P(i);OGATEB,SBLOCK,XS(G)::QAR(J),XS(k)
- P(i);SBLOCK::S(G)
- Q(b);::R1(C)
- R(d);::R1(C)
- B(c);N_GUARD::S(G)
- S(k);::R1(C)
- Refutation
- R(d);
- Try
- Actual
- B(F);N_SPINR(C)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,P_PINR(C),XB(F)::R(A),XB(a)
- B(c);XS(E)::R1(C)
- S(e);N_GUARD,XS(G)::B(F)
- S(k);N_GUARD,SBLOCK,XS(G)::QAB(J)
- P(i);OGATEB,SBLOCK,XS(G)::QAR(J),XS(k)
- P(i);SBLOCK::S(G)
- B(c);N_GUARD::S(G)
- S(k);::R1(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).